B01D 53/9454
Characterised by a specific device
Official title: {characterised by a specific device}
B01D53/9454 (Characterised by a specific device) appears on 661 US grants and 552 published applications in this corpus.
Search patents in B01D- Granted patents
- 661
- Published applications
- 552
- Assignees
- 238
- Inventors
- 1,483
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 9 | 0 |
| 1977 | 2 | 0 |
| 1978 | 3 | 0 |
| 1979 | 6 | 0 |
| 1980 | 3 | 0 |
| 1981 | 4 | 0 |
| 1982 | 3 | 0 |
| 1983 | 7 | 0 |
| 1984 | 0 | 0 |
| 1985 | 7 | 0 |
| 1986 | 2 | 0 |
| 1987 | 4 | 0 |
| 1988 | 7 | 0 |
| 1989 | 7 | 0 |
| 1990 | 5 | 0 |
| 1991 | 6 | 0 |
| 1992 | 10 | 0 |
| 1993 | 8 | 0 |
| 1994 | 10 | 0 |
| 1995 | 13 | 0 |
| 1996 | 11 | 0 |
| 1997 | 9 | 0 |
| 1998 | 23 | 0 |
| 1999 | 21 | 0 |
| 2000 | 26 | 0 |
| 2001 | 24 | 15 |
| 2002 | 20 | 24 |
| 2003 | 22 | 33 |
| 2004 | 16 | 34 |
| 2005 | 19 | 39 |
| 2006 | 19 | 26 |
| 2007 | 16 | 30 |
| 2008 | 18 | 26 |
| 2009 | 20 | 19 |
| 2010 | 19 | 19 |
| 2011 | 23 | 18 |
| 2012 | 18 | 12 |
| 2013 | 13 | 14 |
| 2014 | 17 | 12 |
| 2015 | 8 | 25 |
| 2016 | 14 | 18 |
| 2017 | 18 | 23 |
| 2018 | 22 | 21 |
| 2019 | 19 | 24 |
| 2020 | 21 | 39 |
| 2021 | 25 | 19 |
| 2022 | 24 | 21 |
| 2023 | 13 | 14 |
| 2024 | 13 | 11 |
| 2025 | 8 | 10 |
| 2026 | 6 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Multi-layer TWC formulations with optimalized PGM loadings29 Sep 2026US 12,746,510 B2Johnson Matthey Public Limited Company
- Automotive 3-way catalyst system containing a tail pipe catalyst4 Aug 2026US 12,697,604 B2BASF Mobile Emissions Catalysts LLC
- Particulate filter28 Jul 2026US 12,691,414 B2Cataler Corporation
- Exhaust gas purification catalyst device7 Apr 2026US 12,594,525 B2Cataler Corporation
- Emission control catalyst article with enriched PGM zone, method and apparatus to produce the same10 Mar 2026US 12,569,839 B2BASF Mobile Emissions Catalysts LLC
- Exhaust gas purification catalyst13 Aug 2026US 2026/0233161 A1Mitsui Mining & Smelting Co., Ltd.
- Gpf with improved washcoat distribution13 Aug 2026US 2026/0233163 A1Umicore AG & Co. KG
- Exhaust gas purifying device2 Jul 2026US 2026/0183712 A1Subaru Corporation
- Low bulk density, high geometric surface area honeycomb bodies4 Jun 2026US 2026/0152445 A1Corning Incorporated
- Production Method for Exhaust Gas Purification Catalyst and Chemical Solution Plate used in said Production Method21 May 2026US 2026/0138124 A1Cataler Corporation
Most cited
By later US patents
- Exhaust gas purification device for an internal combustion engine114US 5,974,793 AToyota Jidosha Kabushiki Kaisha · 1999
- Exhaust system with emissions storage device and plasma reactor111US 5,746,984 ALow Emissions Technologies Research and Development Partnership · 1998
- Monolithic catalyst member and support therefor105US 4,335,023 AEngelhard Corporation · 1982
- Process for making metal substrate catalytic converter cores103US 4,711,009 AW. R. Grace & Co. · 1987
- Electrically heated catalytic converter99US 4,976,929 AW. R. Grace & Co.-Conn. · 1990